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题名: Hybrid silica monolithic column for capillary electrochromatography with enhanced cathodic electroosmotic flow
作者: Hu, Jiwei;  Xie, Chuanhui;  Tian, Ruijun;  He, Zhike;  Zou, Hanfa
通讯作者: 邹汉法
关键词: aromatic acid ;  capillary electrochromatography ;  electroosmotic flow ;  silica monolithic column ;  sol-gel process
刊名: ELECTROPHORESIS
发表日期: 2006-11-01
DOI: 10.1002/elps.200600171
卷: 27, 期:21, 页:4266-4272
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1809
产权排名: 2;1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
英文摘要: A hybrid silica monolithic stationary phase for RP CEC was prepared by in situ cocondensation of (3-mercaptopropyl)-trimethoxysilane (MPTMS), phenyltriethoxysilane (PTES), and tetraethoxysilane (TEOS) via a sol-gel process. The thiol groups on the surface of the stationary phase were oxidized to sulfonic acids by peroxytrifluoroacetic acid. The introduced sulfonic acid moieties on the monoliths were characterized by a strong and relatively stable EOF in a broad pH range from 2.35 to 7.0 in CEC. Aromatic acids and neutral compounds can be simultaneously separated in this column under cathodic EOF The CEC column exhibited a typical RP chromatographic mechanism for neutral compounds due to the introduced phenyl groups.
关键词[WOS]: STATIONARY PHASES ;  CHROMATOGRAPHIC CHARACTERIZATION ;  LIQUID-CHROMATOGRAPHY ;  OCTADECYL MOIETIES ;  SEPARATION MEDIA ;  ACIDIC COMPOUNDS ;  REVERSED-PHASE ;  PACKING
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000242222500018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97461
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Dalian, Peoples R China

Recommended Citation:
Hu, Jiwei,Xie, Chuanhui,Tian, Ruijun,et al. Hybrid silica monolithic column for capillary electrochromatography with enhanced cathodic electroosmotic flow[J]. ELECTROPHORESIS,2006,27(21):4266-4272.
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